申请人:Aventis Pharma S.A.
公开号:US20030013889A1
公开(公告)日:2003-01-16
Taxane derivatives and a method of preparing taxane derivatives of formula (I):
1
are disclosed. In general formula (I), Ar represents an aryl radical; R represents a phenyl radical or a radical R
5
—O— in which R
5
represents an alkyl, alkenyl, alkynyl, cycloalkyl, phenyl or saturated or unsaturated nitrogenous heterocylcyl radical, R
1
and R
2
, which are identical or different, each represent a hydrogen atom or an alkyl, phenylalkyl, phenyl, alkoxyphenyl, or dialkoxyphenyl radical, or else R
1
and R
2
form, together with the carbon atom to which they are bonded, a ring having from 4 to 7 members; R
3
represents an acetyl radical or a protecting group of the hydroxyl functional group; and R
4
represents a protecting group of the hydroxyl functional group.
本文揭示了紫杉烷衍生物以及制备通式(I)1的方法。在通式(I)中,Ar代表芳基基团;R代表苯基团或基团R5-O-,其中R5代表烷基,烯基,炔基,环烷基,苯基或饱和或不饱和氮杂环基团,R1和R2相同或不同,每个代表氢原子或烷基,苯基烷基,苯基,烷氧基苯基或二烷氧基苯基基团,或者R1和R2与它们连接的碳原子一起形成具有4至7个成员的环;R3表示乙酰基基团或羟基官能团的保护基团;R4表示羟基官能团的保护基团。